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43,166
RESULTS

COLLECTION
TOPIC atoz
ERIC Archive 7,579
bell system 3,519
frequency 668
technical 607
system 573
data 563
WWII 537
circuit 388
signal 377
Models 360
software 335
program 311
network 310
Military 308
US Army 297
cable 284
disk 280
bell 265
error 264
click 258
power 257
output 254
digital 248
apple 231
noise 221
mode 218
RUSSIA 210
equation 210
Surveys 199
phase 198
input 193
telephone 187
fiber 184
impedance 182
voltage 180
logic 175
channel 173
Grants 172
game 172
Training 168
Machinery 165
file 165
Cooking 164
Building 163
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